#
#VID 11a84092-8f9f-11db-ab33-000e0c2e438a
# OpenVAS Vulnerability Test
# $
# Description: Auto generated from vuxml or freebsd advisories
#
# Authors:
# Thomas Reinke <reinke@securityspace.com>
#
# Copyright:
# Copyright (c) 2008 E-Soft Inc. http://www.securityspace.com
# Text descriptions are largely excerpted from the referenced
# advisories, and are Copyright (c) the respective author(s)
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2,
# as published by the Free Software Foundation
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
if(description)
{
 script_id(57726);
 script_cve_id("CVE-2006-4334", "CVE-2006-4335", "CVE-2006-4336", "CVE-2006-4337", "CVE-2006-4338");
 script_version ("$");
 script_tag(name:"cvss_base", value:"7.5");
 script_tag(name:"risk_factor", value:"High");
 name = "FreeBSD Ports: gzip";
 script_name(name);

 desc = "The remote host is missing an update to the system
as announced in the referenced advisory.

The following package is affected: gzip

CVE-2006-4334
Unspecified vulnerability in gzip 1.3.5 allows context-dependent
attackers to cause a denial of service (crash) via a crafted GZIP (gz)
archive, which results in a NULL dereference.

CVE-2006-4335
Array index error in the make_table function in unlzh.c in the LZH
decompression component in gzip 1.3.5, when running on certain
platforms, allows context-dependent attackers to cause a denial of
service (crash) and possibly execute arbitrary code via a crafted GZIP
archive that triggers an out-of-bounds write, aka a 'stack
modification vulnerability.'

CVE-2006-4336
Buffer underflow in the build_tree function in unpack.c in gzip 1.3.5 allows
context-dependent attackers to execute arbitrary code via a crafted leaf
count table that causes a write to a negative index.

CVE-2006-4337
Buffer overflow in the make_table function in the LHZ component in
gzip 1.3.5 allows context-dependent attackers to execute arbitrary
code via a crafted decoding table in a GZIP archive.

CVE-2006-4338
unlzh.c in the LHZ component in gzip 1.3.5 allows context-dependent
attackers to cause a denial of service (infinite loop) via a crafted
GZIP archive.

Solution:
Update your system with the appropriate patches or
software upgrades.


Risk factor : High";

 script_description(desc);

 summary = "FreeBSD Ports: gzip";
 script_summary(summary);

 script_category(ACT_GATHER_INFO);

 script_copyright("Copyright (c) 2006 E-Soft Inc. http://www.securityspace.com");
 family = "FreeBSD Local Security Checks";
 script_family(family);
 script_dependencies("gather-package-list.nasl");
 script_require_keys("ssh/login/freebsdrel");
 exit(0);
}

#
# The script code starts here
#

include("revisions-lib.inc");
include("pkg-lib-bsd.inc");
vuln = 0;
bver = portver(pkg:"gzip");
if(!isnull(bver) && revcomp(a:bver, b:"0")>0) {
    security_note(0, data:"Package gzip version " + bver + " is installed which is known to be vulnerable.");
    vuln = 1;
}

if(vuln) {
    security_hole(0);
}
